diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 4b0f4c3d9..4acb25174 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -180,7 +180,7 @@ jobs:
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
         if: github.event_name != 'pull_request'
-        uses: sigstore/cosign-installer@v3.3.0
+        uses: sigstore/cosign-installer@v3.4.0
 
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
@@ -289,7 +289,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install cosign
-        uses: sigstore/cosign-installer@v3.3.0
+        uses: sigstore/cosign-installer@v3.4.0
       - name: Download executables
         uses: actions/download-artifact@v4
         with: